Information Sending Method, Network Device, and Terminal

ABSTRACT

An information sending method, where the method includes receiving, by a first network device, alarm information sent by an alarm terminal; and after confirming the alarm information, generating, by the first network device, first guide information according to the alarm information, and sending the first guide information to a target terminal, so that the target terminal can respond to the alarm information according to the first guide information, where the target terminal is a terminal selected from terminals that are within same base-station signal coverage in which the alarm terminal is located, or the target terminal is a terminal selected from terminals whose distances from the alarm terminal are less than a threshold. The present disclosure further discloses a corresponding network device and terminal.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.14/692,351, filed on Apr. 21, 2015, which claims priority to ChinesePatent Application No. 201410165238.X, filed on Apr. 23, 2014. All ofthe afore-mentioned patent applications are hereby incorporated byreference in their entireties.

TECHNICAL FIELD

The present disclosure relates to the communications field, and inparticular, to an information sending method, a network device, and aterminal.

BACKGROUND

When help is needed in an emergency, generally, a help seeker contacts a110 alarm center by phone, and then, the police arrive at the site ofthe emergency for rescue. A problem of help seeking in this way is thatit may be a relatively long time from the reporting to the arrival ofthe police at the site, and therefore, the best opportunity for rescueis easily missed.

In the prior art, some help-seeking methods are also provided.

For example, a help-seeking method is that a mobile phone with acalling-for-help function is provided and includes a toggle key that isconfigured to trigger a calling-for-help system; the toggle key isconnected to a general-purpose input/output (GPIO) interface of acentral processing unit (CPU) of the mobile phone; and after the CPU ofthe mobile phone receives a trigger signal, positioning is performedusing an Assisted Global Positioning System/Global Positioning System(AGPS/GPS) chip of the mobile phone, and collected location informationis sent by the CPU of the mobile phone to a mobile phone with a presetphone number.

In this method, after a user triggers help seeking using the toggle key,the mobile phone sends the location information of the user to themobile phone with the preset phone number. However, if the mobile phonewith the preset phone number is not started, or when the mobile phonewith the preset phone number is relatively far from the help seeker,even though help-seeking information including a location is sent, thehelp seeker cannot get help in time.

For example, another help-seeking method is that WeChat software isinstalled in a mobile phone, and when a user shakes the mobile phone,the WeChat software uploads a mobile number, base station information,and GPS information of the user to a server; and the server immediatelycalculates information that other users shake mobile phones, which isreceived within N seconds before a request that the user shakes themobile phone is received, and performs matching according to distances,and then returns a result to the user. Specific steps are as follows.

1. Implement a shake function, where an acceleration sensor is used.When the acceleration sensor detects that the mobile phone of the useris shaking, a request is sent to a nearby mobile phone base station.

2. A nearby mobile phone base station with the best signal qualityreceives the request of the user, and generally a distance between thebase station and the mobile phone of the user ranges from 50 to 100meters. For example, a serial number of the base station is W203000,where all mobile phone base stations are uniquely numbered; and aphysical address of a location of the mobile phone base station may befound out according to the serial number of the base station.

3. The mobile phone base station uses its location as a current locationof the user, and sends the location to a WeChat background server.

4. If detecting that multiple persons are at a same location, the WeChatbackground server pushes to the user persons nearby.

However, WeChat is a social chat tool, and is only used to push otherpersons nearby to a user. When needing help, the user still needs tocontact the persons nearby one by one. The method is not an automatichelp-seeking method, has relatively low execution efficiency, andobviously, cannot be applied to an emergent help-seeking scenario.

It can be seen that, there is no relatively effective help-seekingmethod in the prior art.

SUMMARY

Embodiments of the present disclosure provide an information sendingmethod, a network device, and a terminal, which attempt to resolve atechnical problem in the prior art that there is no relatively goodhelp-seeking method.

According to a first aspect of the present disclosure, an informationsending method is provided, where the method may include receiving, by afirst network device, alarm information sent by an alarm terminal; andafter confirming the alarm information, generating, by the first networkdevice, first guide information according to the alarm information, andsending the first guide information to a target terminal, so that thetarget terminal can respond to the alarm information according to thefirst guide information, where the target terminal is a terminalselected from terminals that are within same base-station signalcoverage in which the alarm terminal is located, or the target terminalis a terminal selected from terminals whose distances from the alarmterminal are less than a threshold.

With reference to the first aspect, in a first possible implementationmanner, the first guide information is information includinghelp-seeking content, or the first guide information is informationincluding road guide content.

With reference to the first possible implementation manner, in a secondpossible implementation manner, the method further includes receiving,by the first network device, location information of the alarm terminalthat is sent by the alarm terminal, where the location information ofthe alarm terminal is obtained by the alarm terminal by means of AGPS orGPS; and the generating, by the first network device, first guideinformation according to the alarm information, and sending the firstguide information to a target terminal includes generating, by the firstnetwork device, the first guide information according to the alarminformation, and sending the first guide information to the targetterminal, where the target terminal is a terminal that is determined,according to the location information of the alarm terminal and thefirst guide information, among terminals that are within samebase-station signal coverage in which the alarm terminal is located, or,a terminal that is determined, according to the location information ofthe alarm terminal and the first guide information, among terminalswhose distances from the alarm terminal are less than the threshold.

With reference to the first aspect or the first possible implementationmanner, in a third possible implementation manner, confirming, by thefirst network device, the alarm information includes determining, by thefirst network device, whether the alarm information is valid alarminformation, and determining, by the first network device according toinformation about the alarm terminal that is carried in the alarminformation, whether the alarm terminal is an authorized terminal; andwhen the alarm information is valid alarm information, and the alarmterminal is an authorized terminal, confirming, by the first networkdevice, that detection of the alarm information is passed.

With reference to the first aspect, the first possible implementationmanner, or the second possible implementation manner, in a fourthpossible implementation manner, generating, by the first network device,first guide information according to the alarm information includesparsing, by the first network device, the alarm information, anddetermining a meaning of the alarm information; and generating, by thefirst network device, the corresponding first guide informationaccording to the meaning of the alarm information.

With reference to the first aspect, in a fifth possible implementationmanner, sending the first guide information to a target terminalincludes sending the first guide information to a second network device,and sending, using the second network device, to the target terminalsecond guide information that includes the first guide information,where the target terminal is a terminal that is determined, by thesecond network device according to location information of the alarmterminal and the second guide information, among terminals that arewithin same base-station signal coverage in which the alarm terminal islocated, or, a terminal that is determined, by the second network deviceaccording to location information of the alarm terminal and the secondguide information, among terminals whose distances from the alarmterminal are less than the threshold.

With reference to the first aspect, the first possible implementationmanner, the third possible implementation manner, or the fourth possibleimplementation manner, in a sixth possible implementation manner,generating, by the first network device, first guide informationaccording to the alarm information, and sending the first guideinformation to a target terminal includes requesting, by the firstnetwork device according to the information about the alarm terminalthat is carried in the alarm information, location information of thealarm terminal from a second network device; receiving, by the firstnetwork device, the location information of the alarm terminal that isfed back by the second network device; generating, by the first networkdevice, the first guide information according to the alarm informationand the location information of the alarm terminal, where the locationinformation of the alarm terminal is obtained by the second networkdevice by means of AGPS, or the location information of the alarmterminal is obtained by the second network device in a time of arrival(TOA) manner; and sending, by the first network device, the first guideinformation to the second network device, and sending, using the secondnetwork device, to the target terminal second guide information thatincludes the first guide information.

With reference to the first aspect or any one of the first to the fourthpossible implementation manners, in a seventh possible implementationmanner, generating, by the first network device, first guide informationaccording to the alarm information, and sending the first guideinformation to a target terminal includes generating, by the firstnetwork device, the first guide information according to the alarminformation; and determining, by the first network device, the targetterminal according to the first guide information, and sending the firstguide information to the target terminal, where the target terminal is aterminal that is determined, by the first network device according tothe first guide information, among terminals that are within samebase-station signal coverage in which the alarm terminal is located, or,a terminal that is determined, by the first network device according tothe first guide information, among terminals whose distances from thealarm terminal are less than the threshold.

With reference to the seventh possible implementation manner, in aneighth possible implementation manner, determining, by the first networkdevice, the target terminal according to the first guide informationincludes determining, by the first network device according to at leastthe first guide information and forte information of users correspondingto terminals that are within same base-station signal coverage in whichthe alarm terminal is located, the target terminal among the terminalsthat are within the same base-station signal coverage in which the alarmterminal is located; or, determining, by the first network deviceaccording to at least the first guide information and forte informationof users corresponding to terminals whose distances from the alarmterminal are less than the threshold, the target terminal among theterminals whose distances from the alarm terminal are less than thethreshold.

With reference to the first aspect or any one possible implementationmanner of the first possible implementation manner to the eighthpossible implementation manner, in a ninth possible implementationmanner, the first guide information further includes navigationinformation that is from the target terminal to the alarm terminal.

According to a second aspect of the present disclosure, an informationsending method is provided, where the method may include the followingsteps: receiving, by a first network device, alarm information sent byan alarm terminal; and after confirming the alarm information,generating, by the first network device, first guide informationaccording to the alarm information, sending the first guide informationto a second network device, and sending, using the second networkdevice, to a target terminal second guide information that relates tothe first guide information, where the target terminal is a terminalthat is determined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals that are within same base-station signal coverage inwhich the alarm terminal is located, or, a terminal that is determined,by the second network device according to location information of thealarm terminal and the second guide information, among terminals whosedistances from the alarm terminal are less than a threshold.

With reference to the second aspect, in a first possible implementationmanner, the second guide information is information generated by thefirst network device according to the first guide information, or thesecond guide information is the first guide information.

According to a third aspect of the present disclosure, an informationsending method is provided, where the method may include the followingsteps: sending, by a terminal, alarm information to a first networkdevice; receiving, by the terminal, second guide information sent by thefirst network device, where the second guide information is generated bythe first network device according to the alarm information;establishing, by the terminal, a communications link with a targetterminal according to the second guide information; and sending, by theterminal, first guide information to the target terminal over thecommunications link with the target terminal, where the first guideinformation is generated by the terminal according to the alarminformation, and the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

With reference to the third aspect, in a first possible implementationmanner, establishing, by the terminal, a communications link with atarget terminal according to the second guide information includesestablishing, by the terminal, the device-to-device (D2D) communicationslink with the target terminal according to the second guide information;and sending, by the terminal, first guide information to the targetterminal over the communications link with the target terminal includessending, by the terminal, the first guide information to the targetterminal over the D2D communications link with the target terminal.

With reference to the third aspect or the first possible implementationmanner, in a second possible implementation manner, the second guideinformation includes time-frequency resource information.

According to a fourth aspect of the present disclosure, a network deviceis provided and includes a receiving module configured to receive alarminformation sent by an alarm terminal; and an operating moduleconfigured to, after confirming the alarm information, generate firstguide information according to the alarm information, and send the firstguide information to a target terminal, so that the target terminal canrespond to the alarm information according to the first guideinformation, where the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

With reference to the fourth aspect, in a first possible implementationmanner, the first guide information is information includinghelp-seeking content, or the first guide information is informationincluding road guide content.

With reference to the first possible implementation manner, in a secondpossible implementation manner, the receiving module is furtherconfigured to receive location information of the alarm terminal that issent by the alarm terminal, where the location information of the alarmterminal is obtained by the alarm terminal by means of AGPS/GPS; and theoperating module is further configured to generate the first guideinformation according to the alarm information, and send the first guideinformation to the target terminal, where the target terminal is aterminal that is determined, according to the location information ofthe alarm terminal and the first guide information, among terminals thatare within same base-station signal coverage in which the alarm terminalis located, or, a terminal that is determined, according to the locationinformation of the alarm terminal and the first guide information, amongterminals whose distances from the alarm terminal are less than thethreshold.

With reference to the fourth aspect or the first possible implementationmanner, in a third possible implementation manner, that the operatingmodule is configured to confirm the alarm information is determiningwhether the alarm information is valid alarm information, anddetermining, according to information about the alarm terminal that iscarried in the alarm information, whether the alarm terminal is anauthorized terminal; and when the alarm information is valid alarminformation, and the alarm terminal is an authorized terminal,confirming that detection of the alarm information is passed.

With reference to the fourth aspect, the first possible implementationmanner, or the second possible implementation manner, in a fourthpossible implementation manner, that the operating module is configuredto generate first guide information according to the alarm informationis parsing the alarm information and determining a meaning of the alarminformation; and generating the corresponding first guide informationaccording to the meaning of the alarm information.

With reference to the fourth aspect, in a fifth possible implementationmanner, that the operating module is configured to send the first guideinformation to a target terminal is sending the first guide informationto a second network device, and sending, using the second networkdevice, to the target terminal second guide information that includesthe first guide information, where the target terminal is a terminalthat is determined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals that are within same base-station signal coverage inwhich the alarm terminal is located, or, a terminal that is determined,by the second network device according to location information of thealarm terminal and the second guide information, among terminals whosedistances from the alarm terminal are less than the threshold.

With reference to the fourth aspect, the first possible implementationmanner, the third possible implementation manner, or the fourth possibleimplementation manner, in a sixth possible implementation manner, theoperating module is configured to request, according to the informationabout the alarm terminal that is carried in the alarm information,location information of the alarm terminal from a second network device;receive the location information of the alarm terminal that is fed backby the second network device; generate the first guide informationaccording to the alarm information and the location information of thealarm terminal, where the location information of the alarm terminal isobtained by the second network device by means of AGPS, or the locationinformation of the alarm terminal is obtained by the second networkdevice in a TOA manner; and send the first guide information to thesecond network device, and send, using the second network device, to thetarget terminal second guide information that includes the first guideinformation.

With reference to the fourth aspect or any one possible implementationmanner of the first possible implementation manner to the fourthpossible implementation manner, in a seventh possible implementationmanner, the operating module is configured to generate the first guideinformation according to the alarm information; and determine the targetterminal according to the first guide information, and send the firstguide information to the target terminal, where the target terminal is aterminal that is determined, by the network device according to thefirst guide information, among terminals that are within samebase-station signal coverage in which the alarm terminal is located, or,a terminal that is determined, by the network device according to thefirst guide information, among terminals whose distances from the alarmterminal are less than the threshold.

With reference to the seventh possible implementation manner, in aneighth possible implementation manner, that the operating module isconfigured to determine the target terminal according to the first guideinformation is determining, according to at least the first guideinformation and forte information of users corresponding to terminalsthat are within same base-station signal coverage in which the alarmterminal is located, the target terminal among the terminals that arewithin the same base-station signal coverage in which the alarm terminalis located; or, determining, according to at least the first guideinformation and forte information of users corresponding to terminalswhose distances from the alarm terminal are less than the threshold, thetarget terminal among the terminals whose distances from the alarmterminal are less than the threshold.

With reference to the fourth aspect or any one possible implementationmanner of the first possible implementation manner to the eighthpossible implementation manner, in a ninth possible implementationmanner, the first guide information further includes navigationinformation between the target terminal and the alarm terminal.

According to a fifth aspect of the present disclosure, a network deviceis provided and includes a receiving module configured to receive alarminformation sent by an alarm terminal; and an operating moduleconfigured to, after confirming the alarm information, generate firstguide information according to the alarm information, send the firstguide information to a second network device, and send, using the secondnetwork device, to a target terminal second guide information thatrelates to the first guide information, where the target terminal is aterminal that is determined, by the second network device according tolocation information of the alarm terminal and the second guideinformation, among terminals that are within same base-station signalcoverage in which the alarm terminal is located, or, a terminal that isdetermined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals whose distances from the alarm terminal are less than athreshold.

With reference to the fifth aspect, in a first possible implementationmanner, the second guide information is information generated by thenetwork device according to the first guide information, or the secondguide information is the first guide information.

According to a sixth aspect of the present disclosure, a terminal isprovided and includes a sending module configured to send alarminformation to a first network device; and send first guide informationto a target terminal over a communications link with the targetterminal, where the first guide information is generated by the terminalaccording to the alarm information, and the target terminal is aterminal selected from terminals that are within same base-stationsignal coverage in which the alarm terminal is located, or the targetterminal is a terminal selected from terminals whose distances from thealarm terminal are less than a threshold; a receiving module configuredto receive second guide information sent by the first network device,where the second guide information is generated by the first networkdevice according to the alarm information; and an establishing moduleconfigured to establish the communications link with the target terminalaccording to the second guide information.

With reference to the sixth aspect, in a first possible implementationmanner, the establishing module is configured to establish a D2Dcommunications link with the target terminal according to the secondguide information; and the sending module is configured to send thefirst guide information to the target terminal over the D2Dcommunications link with the target terminal.

With reference to the sixth aspect or the first possible implementationmanner, in a second possible implementation manner, the second guideinformation includes time-frequency resource information.

According to a seventh aspect of the present disclosure, an informationsending apparatus is provided and includes a memory configured to storean instruction; a receiver configured to receive alarm information sentby an alarm terminal; a processor configured to execute the instruction,and after confirming the alarm information, generate first guideinformation according to the alarm information; and a transmitterconfigured to send the first guide information to a target terminal, sothat the target terminal can respond to the alarm information accordingto the first guide information, where the target terminal is a terminalselected from terminals that are within same base-station signalcoverage in which the alarm terminal is located, or the target terminalis a terminal selected from terminals whose distances from the alarmterminal are less than a threshold.

With reference to the seventh aspect, in a first possible implementationmanner, the first guide information is information includinghelp-seeking content, or the first guide information is informationincluding road guide content.

With reference to the first possible implementation manner, in a secondpossible implementation manner, the receiver is further configured toreceive location information of the alarm terminal that is sent by thealarm terminal, where the location information of the alarm terminal isobtained by the alarm terminal by means of AGPS or GPS; the processor isconfigured to execute the instruction, and generate the first guideinformation according to the alarm information; and the transmitter isconfigured to send the first guide information to the target terminal,where the target terminal is a terminal that is determined, according tothe location information of the alarm terminal and the first guideinformation, among terminals that are within same base-station signalcoverage in which the alarm terminal is located, or, a terminal that isdetermined, according to the location information of the alarm terminaland the first guide information, among terminals whose distances fromthe alarm terminal are less than the threshold.

With reference to the seventh aspect or the first possibleimplementation manner, in a third possible implementation manner, thatthe processor is configured to execute the instruction and confirm thealarm information is that the processor executes the instruction anddetermines whether the alarm information is valid alarm information; theprocessor determines, according to information about the alarm terminalthat is carried in the alarm information, whether the alarm terminal isan authorized terminal; and when the alarm information is valid alarminformation, and the alarm terminal is an authorized terminal, theprocessor confirms that detection of the alarm information is passed.

With reference to the seventh aspect, the first possible implementationmanner, or the second possible implementation manner, in a fourthpossible implementation manner, that the processor is configured togenerate first guide information according to the alarm information isthat the processor executes the instruction, parses the alarminformation, and determines a meaning of the alarm information; and theprocessor generates the corresponding first guide information accordingto the meaning of the alarm information.

With reference to the seventh aspect, in a fifth possible implementationmanner, the transmitter is configured to send the first guideinformation to a second network device, and send, using the secondnetwork device, to the target terminal second guide information thatincludes the first guide information, where the target terminal is aterminal that is determined, by the second network device according tolocation information of the alarm terminal and the second guideinformation, among terminals that are within same base-station signalcoverage in which the alarm terminal is located, or, a terminal that isdetermined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals whose distances from the alarm terminal are less thanthe threshold.

With reference to the seventh aspect, the first possible implementationmanner, the third possible implementation manner, or the fourth possibleimplementation manner, in a sixth possible implementation manner, thetransmitter is further configured to request, according to theinformation about the alarm terminal that is carried in the alarminformation, location information of the alarm terminal from a secondnetwork device; the receiver is further configured to receive thelocation information of the alarm terminal that is fed back by thesecond network device; the processor is configured to execute theinstruction, generate the first guide information according to the alarminformation and the location information of the alarm terminal, wherethe location information of the alarm terminal is obtained by the secondnetwork device by means of AGPS, or the location information of thealarm terminal is obtained by the second network device in a TOA manner;and the transmitter is configured to send the first guide information tothe second network device, and send, using the second network device, tothe target terminal second guide information that includes the firstguide information.

With reference to the seventh aspect or any one possible implementationmanner of the first possible implementation manner to the fourthpossible implementation manner, in a seventh possible implementationmanner, the processor is configured to execute the instruction, generatefirst guide information according to the alarm information, anddetermine the target terminal according to the first guide information;and the transmitter is configured to send the first guide information tothe target terminal, where the target terminal is a terminal that isdetermined, by the processor according to the first guide information,among terminals that are within same base-station signal coverage inwhich the alarm terminal is located, or, a terminal that is determined,by the processor according to the first guide information, amongterminals whose distances from the alarm terminal are less than thethreshold.

With reference to the seventh possible implementation manner, in aneighth possible implementation manner, that the processor is configuredto execute the instruction and determine the target terminal accordingto the first guide information is that the processor executes theinstruction, and determines, according to at least the first guideinformation and forte information of users corresponding to terminalsthat are within same base-station signal coverage in which the alarmterminal is located, the target terminal among the terminals that arewithin the same base-station signal coverage in which the alarm terminalis located; or, the processor executes the instruction, and determines,according to at least the first guide information and forte informationof users corresponding to terminals whose distances from the alarmterminal are less than the threshold, the target terminal among theterminals whose distances from the alarm terminal are less than thethreshold.

With reference to the seventh aspect or any one possible implementationmanner of the first possible implementation manner to the eighthpossible implementation manner, in a ninth possible implementationmanner, the first guide information further includes navigationinformation that is from the target terminal to the alarm terminal.

According to an eighth aspect of the present disclosure, an informationsending apparatus is provided and includes a memory configured to storean instruction; a receiver configured to receive alarm information sentby an alarm terminal; a processor configured to execute the instruction,and after confirming the alarm information, generate first guideinformation according to the alarm information; and a transmitterconfigured to send the first guide information to a second networkdevice, and send, using the second network device, to a target terminalsecond guide information that relates to the first guide information,where the target terminal is a terminal that is determined, by thesecond network device according to location information of the alarmterminal and the second guide information, among terminals that arewithin same base-station signal coverage in which the alarm terminal islocated, or, a terminal that is determined, by the second network deviceaccording to location information of the alarm terminal and the secondguide information, among terminals whose distances from the alarmterminal are less than a threshold.

With reference to the eighth aspect, in a first possible implementationmanner, the second guide information is information generated by thefirst network device according to the first guide information, or thesecond guide information is the first guide information.

According to a ninth aspect of the present disclosure, an informationsending apparatus is provided and includes a memory configured to storean instruction; a transmitter configured to send alarm information to afirst network device; and send first guide information to a targetterminal over a communications link with the target terminal, where thefirst guide information is generated by the terminal according to thealarm information, and the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold; a receiver configured to receive second guide informationsent by the first network device, where the second guide information isgenerated by the first network device according to the alarminformation; and a processor configured to execute the instruction andestablish the communications link with the target terminal according tothe second guide information.

With reference to the ninth aspect, in a first possible implementationmanner, the processor is configured to execute the instruction andestablish a D2D communications link with the target terminal accordingto the second guide information; and the transmitter is configured tosend the first guide information to the target terminal over the D2Dcommunications link with the target terminal.

With reference to the ninth aspect or the first possible implementationmanner, in a second possible implementation manner, the second guideinformation includes time-frequency resource information.

In the embodiments of the present disclosure, after receiving the alarminformation, the first network device may generate the first guideinformation and send the first guide information to the target terminal.In this way, the target terminal may respond to the alarm information,and help rescue a user of the alarm terminal. Because the targetterminal is a terminal selected from terminals that are within samebase-station signal coverage in which the alarm terminal is located, orthe target terminal is a terminal selected from terminals whosedistances from the alarm terminal are less than a threshold, which meansthat a distance between the target terminal and the alarm terminal isrelatively short, so that a rescuer can arrive at the site in time torescue the user of the alarm terminal, thereby effectively improvingrescue efficiency. The first network device automatically sends thefirst guide information to the target terminal, where there may be oneor more target terminals, and the alarm terminal does not need to sendthe first guide information one by one; therefore, efficiency ofinformation transmission is relatively high, and it is ensured to thegreatest extent that the user of the alarm terminal can be rescued intime.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a main flowchart of an information sending method on a networkdevice side according to an embodiment of the present disclosure;

FIG. 2 is a main flowchart of another information sending method on anetwork device side according to an embodiment of the presentdisclosure;

FIG. 3 is a main flowchart of an information sending method on aterminal side according to an embodiment of the present disclosure;

FIG. 4 is a structural block diagram of a network device according to anembodiment of the present disclosure;

FIG. 5 is another structural block diagram of a network device accordingto an embodiment of the present disclosure;

FIG. 6 is a structural block diagram of a terminal according to anembodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a network device accordingto an embodiment of the present disclosure;

FIG. 8 is another schematic structural diagram of a network deviceaccording to an embodiment of the present disclosure; and

FIG. 9 is a schematic structural diagram of a terminal according to anembodiment of the present disclosure.

DESCRIPTION OF EMBODIMENTS

The information sending method in the embodiments of the presentdisclosure may include receiving, by a first network device, alarminformation sent by an alarm terminal; and after confirming the alarminformation, generating, by the first network device, first guideinformation according to the alarm information, and sending the firstguide information to a target terminal, so that the target terminal canrespond to the alarm information according to the first guideinformation, where the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

In the embodiments of the present disclosure, after receiving the alarminformation, the first network device may generate the first guideinformation and send the first guide information to the target terminal.In this way, the target terminal may respond to the alarm information,and help rescue a user of the alarm terminal. Because the targetterminal is a terminal selected from terminals that are within samebase-station signal coverage in which the alarm terminal is located, orthe target terminal is a terminal selected from terminals whosedistances from the alarm terminal are less than a threshold, which meansthat a distance between the target terminal and the alarm terminal isrelatively short, so that the target terminal can arrive at the site intime to rescue the user of the alarm terminal, thereby effectivelyimproving rescue efficiency. The first network device automaticallysends the first guide information to the target terminal, where theremay be one or more target terminals, and the alarm terminal does notneed to send the first guide information one by one; therefore,efficiency of information transmission is relatively high, and it isensured to the greatest extent that the user of the alarm terminal canbe rescued in time.

To make the objectives, technical solutions, and advantages of theembodiments of the present disclosure clearer, the following clearlydescribes the technical solutions in the embodiments of the presentdisclosure with reference to the accompanying drawings in theembodiments of the present disclosure. The described embodiments aresome but not all of the embodiments of the present disclosure. All otherembodiments obtained by a person of ordinary skill in the art based onthe embodiments of the present disclosure without creative efforts shallfall within the protection scope of the present disclosure.

Technologies described in this specification may be applied to variouscommunications systems, for example, current second generation (2G) andthird generation (3G) communications systems and a next-generationcommunications system, for example, a Global System for MobileCommunications (GSM), a Code Division Multiple Access (CDMA) system, aTime Division Multiple Access (TDMA) system, a Wideband Code DivisionMultiple Access (WCDMA) system, a Frequency Division Multiple Access(FDMA) system, an Orthogonal Frequency-Division Multiple Access (OFDMA)system, a single-carrier FDMA (SC-FDMA) system, a General Packet RadioService (GPRS) system, a Long Term Evolution (LTE) system, and othercommunications systems.

In addition, the terms “system” and “network” may be usedinterchangeably in this specification. The term “and/or” in thisspecification describes only an association relationship for describingassociated objects and represents that three relationships may exist.For example, A and/or B may represent the following three cases: Only Aexists, both A and B exist, and only B exists. In addition, thecharacter “/” in this specification generally indicates an “or”relationship between the associated objects.

In the following, the embodiments of the present disclosure aredescribed in detail with reference to the accompanying drawings of thespecification.

Referring to FIG. 1, an embodiment of the present disclosure provides aninformation sending method, and a main procedure of the method is asfollows.

Step 101: A first network device receives alarm information sent by analarm terminal.

For example, the first network device may be an alarm center server. Thealarm terminal includes, for example, a help-seeking module; and a usertriggers the help-seeking module, and the alarm terminal mayautomatically send alarm (help-seeking) information to the first networkdevice.

Preferably, before, after, or when the first network device receives thealarm information sent by the alarm terminal, the method furtherincludes that the first network device receives location information ofthe alarm terminal that is sent by the alarm terminal, where thelocation information of the alarm terminal is obtained by the alarmterminal by means of AGPS/GPS.

If the location information of the alarm terminal is obtained by meansof AGPS, the alarm terminal and a base station need to jointlyparticipate when the location information of the alarm terminal isobtained.

That is, after detecting that the user triggers the help-seeking module,the alarm terminal may acquire the location information of the alarmterminal, and send the alarm information and the location information ofthe alarm terminal to the first network device using a radiocommunications system. The location information of the alarm terminalmay also be carried in the alarm information; or, the locationinformation of the alarm terminal may be carried in other informationfor sending.

A manner in which the user triggers the help-seeking module may includecalling 110 using the alarm terminal, pressing an SOS button on thealarm terminal, starting help-seeking software in the alarm terminal, orthe like.

After the alarm terminal detects that the help-seeking module istriggered, if the alarm terminal has a positioning module, a processormodule of the alarm terminal reads the location information of the alarmterminal using the positioning module. For example, the positioningmodule may be a GPS module, and the location information of the alarmterminal is, for example, latitude and longitude information of thealarm terminal. If the help-seeking module is triggered, but thepositioning module is not started yet, the processor module may activatethe positioning module.

The manner in which the user triggers the help-seeking module may besending a help-seeking request to the alarm terminal, where thehelp-seeking request may be, for example, a real-time voice call duringwhich the alarm terminal dials the 110 number, or may be informationthat is preset in the alarm terminal, or may be a segment of voiceinformation that the user dictates temporarily.

Step 102: After confirming the alarm information, the first networkdevice generates first guide information according to the alarminformation, and sends the first guide information to a target terminal,so that the target terminal can respond to the alarm informationaccording to the first guide information, where the target terminal is aterminal selected from terminals that are within same base-stationsignal coverage in which the alarm terminal is located, or the targetterminal is a terminal selected from terminals whose distances from thealarm terminal are less than a threshold.

Preferably, in this embodiment of the present disclosure, afterreceiving the alarm information, the first network device may firstconfirm the alarm information or put the alarm information on a record.The confirming the alarm information may include confirming the alarmterminal, or, confirming the alarm information. The putting the alarminformation on a record may refer to recording the alarm information.

Preferably, that the first network device confirms the alarm informationmay include that the first network device determines whether the alarminformation is valid alarm information, and the first network devicedetermines, according to information about the alarm terminal that iscarried in the alarm information, whether the alarm terminal is anauthorized terminal; and when the alarm information is valid alarminformation, and the alarm terminal is an authorized terminal, the firstnetwork device confirms that detection of the alarm information ispassed.

For example, the information about the alarm terminal may include anidentifier of the alarm terminal. For example, a whitelist may be storedon the first network device side, where the whitelist may includeidentifiers of authorized terminals. The first network device may lookup, in the whitelist, whether the whitelist includes the identifier ofthe alarm terminal; if the whitelist includes the identifier of thealarm terminal, it indicates that the alarm terminal is an authorizedterminal, and if the first network device confirms that the alarminformation is valid alarm information, the first network device maygenerate the first guide information according to the alarm information;and if the whitelist does not include the identifier of the alarmterminal, it indicates that the alarm terminal is an unauthorizedterminal, the first network device may not respond to the alarminformation, or if the alarm information is invalid alarm information,the first network device may not respond to the alarm information,either. In this way, security of a network system may be ensured to thegreatest extent, and a malicious attack may be avoided.

In addition, an identity of a user of the alarm information, forexample, may be further carried in the alarm information for sending.The first network device may verify the identity of the user anddetermine whether the user is an authorized user; if the user is anauthorized user, the first network device responds to the alarminformation; and if the user is an unauthorized user, the first networkdevice does not respond to the alarm information, thereby avoiding fakealarm information.

After receiving the alarm information, the first network device maygenerate the first guide information according to the alarm information.

Preferably, before, after, or when the first network device receives thealarm information sent by the alarm terminal, the method may furtherinclude that the first network device receives the location informationof the alarm terminal that is sent by the alarm terminal, where thelocation information of the alarm terminal is obtained by the alarmterminal by means of AGPS/GPS.

If the first network device receives the location information of thealarm terminal that is sent by the alarm terminal, that the firstnetwork device generates the first guide information according to thealarm information, and sends the first guide information to the targetterminal may include that the first network device generates the firstguide information according to the alarm information, and sends thefirst guide information to the target terminal, where the targetterminal is a terminal that is determined, according to the locationinformation of the alarm terminal and the first guide information, amongterminals that are within same base-station signal coverage in which thealarm terminal is located, or, a terminal that is determined, accordingto the location information of the alarm terminal and the first guideinformation, among terminals whose distances from the alarm terminal areless than the threshold.

In this embodiment of the present disclosure, the first guideinformation may be information of different types. For example, thefirst guide information may be information including help-seekingcontent, the first guide information may be information including roadguide content, or the like.

Preferably, in this embodiment of the present disclosure, that the firstnetwork device generates the first guide information according to thealarm information may include that the first network device parses thealarm information, and determines a meaning of the alarm information;and the first network device generates the corresponding first guideinformation according to the meaning of the alarm information.

For example, if the meaning of the alarm information is that “a personfalls into water and is rescued, but is in a coma”, the first networkdevice may expect to find a rescuer who is near the help seeker and canperform artificial respiration. Therefore, a meaning of the first guideinformation generated by the first network device may be that “a personnearby falls into water and is rescued; and if you are familiar withartificial respiration, please offer help at once”. It can be seen that,in this embodiment of the present disclosure, the first network devicecan translate the alarm information of the user into an explicit rescuerequirement, so that a user using the target terminal can directly graspthe requirement of the help seeker, thereby offering rescue as soon aspossible.

For example, a manner of parsing the alarm information may be performingsemantic parsing on a text of the alarm information, where the semanticparsing may be determining, based on identification samples betweenwords (phrases) recorded in a database, a meaning of a segment of thetext according to a statistical language model and the identificationsamples. Further, the first network device may store a semanticcomprehension template, and the alarm information is directly mapped tothe first guide information according to the meaning of the alarminformation. Table 1 shows a mapping relationship, where keywords areall those included in the alarm information.

TABLE 1 Keyword 1 Keyword 2 First Guide Information Fall into Seek helpAt xxx site, a person falls into water. A nearby water swimmer, pleaseoffer help as soon as possible. Fall into Breathe/ At xxx site, a personfalls into water and is water Coma rescued. A nearby rescuer who canperform artificial respiration, please offer help as soon as possible.Breathe/ Fall in a At xxx site, a person falls in a faint. A nearby Comafaint rescuer who can provide first aid, please offer help as soon aspossible.

Another possible application scenario is real-time location-basedtraffic information pushing. A most common scenario is that a trafficaccident occurs on a road, which leads to a traffic jam; however, adriver of a vehicle blocked on the road or another driver who is aboutto drive into the road does not know a reason and situation of thetraffic jam, for example, normal car crawling, complete blocking of theroad, or that the traffic accident has been handled.

In this scenario, the alarm terminal may be a terminal that isauthenticated, for example, a terminal exclusively used by the trafficpolice, and registers with the first network device side, where thefirst network device is, for example, an alarm center server; or thealarm terminal may be a common terminal.

The alarm terminal sends the alarm information to the first networkdevice using, for example, a radio communications system. In this case,the alarm information is, for example, road information; and the alarmterminal may further send the location information of the alarm terminalto the first network device. For example, the road information sent bythe alarm terminal is that “two cars are rear-ended at xxx intersection,and it is estimated that handling will be completed in five minutes”.After receiving the road information, the first network device firstdetermines whether the alarm terminal is a registered terminal or areal-name terminal. If it is determined that the alarm terminal is aregistered terminal or a real-name terminal, the first network devicegenerates the first guide information, where the first guide informationis, for example, information including road guide content. For example,the first guide information is that “a traffic stream in x direction ofxxx road is slow because two cars are rear-ended, it will go back tonormal in five minutes, and a driver who needs to pass by this road canbe at ease for driving”. The first network device may select the targetterminal, that is, select an object to which the first guide informationis sent. For example, the first network device may calculate, accordingto the location information of the alarm terminal and the roadinformation, which road section or sections are affected, and select abase station sector that is close to the road section to send the firstguide information to the corresponding target terminal.

Further, if a user needs to receive information including road guidecontent in real time, corresponding terminal road software may beinstalled in a terminal used by the user, and whether a function ofreceiving a road guide is enabled may be set; and if the user sets thatthe function of receiving a road guide is enabled for the terminal, thefirst network device may send information including road guide contentto the terminal. Correspondingly, the first network device may also sendinformation including road guide content only to a terminal in which theterminal road software is installed, so as not to disturb another userwho does not drive on this road section or a user who does not need toreceive information including road guide content.

Preferably, the first guide information may further include the locationinformation of the alarm terminal and/or navigation information, wherethe navigation information is navigation information between the targetterminal and the alarm terminal. Different target terminals correspondto different navigation information.

Preferably, in this embodiment of the present disclosure, that the firstnetwork device generates the first guide information according to thealarm information and sends the first guide information to a targetterminal may include that the first network device generates the firstguide information according to the alarm information; the first networkdevice determines the target terminal according to the first guideinformation, and sends the first guide information to the targetterminal, where the target terminal is a terminal that is determined, bythe first network device according to the first guide information, amongterminals that are within same base-station signal coverage in which thealarm terminal is located, or, a terminal that is determined, by thefirst network device according to the first guide information, amongterminals whose distances from the alarm terminal are less than thethreshold.

That is, the first network device may determine the target terminalaccording to the first guide information. For example, if the meaning ofthe alarm information is that “a person falls into water and is rescued,but is in a coma”, the first network device may expect to find a rescuerwho is near the help seeker and can perform artificial respiration.Therefore, the meaning of the first guide information generated by thefirst network device may be that “a person nearby falls into water andis rescued; and if you are familiar with artificial respiration, pleaseoffer help at once”. A user of the target terminal selected by the firstnetwork device should be familiar with artificial respiration, that is,the target terminal is selected according to the first guideinformation.

Preferably, in this embodiment of the present disclosure, that the firstnetwork device determines the target terminal according to the firstguide information includes that the first network device determines,according to at least the first guide information and forte informationof users corresponding to terminals that are within same base-stationsignal coverage in which the alarm terminal is located, the targetterminal among the terminals that are within the same base-stationsignal coverage in which the alarm terminal is located; or, the firstnetwork device determines, according to at least the first guideinformation and forte information of users corresponding to terminalswhose distances from the alarm terminal are less than the threshold, thetarget terminal among the terminals whose distances from the alarmterminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, the sendingthe first guide information to a target terminal includes sending thefirst guide information to a second network device, and sending, usingthe second network device, to the target terminal second guideinformation that includes the first guide information, where the targetterminal is a terminal that is determined, by the second network deviceaccording to location information of the alarm terminal and the secondguide information, among terminals that are within same base-stationsignal coverage in which the alarm terminal is located, or, a terminalthat is determined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals whose distances from the alarm terminal are less thanthe threshold.

That is, the first network device may send the first guide informationto the target terminal; or, the first network device may send the firstguide information to the second network device, and the second networkdevice may generate the second guide information, include the firstguide information in the second guide information, and send the secondguide information to the target terminal.

For example, the second network device may be a network device in aradio communications system, for example, a base station; or, the secondnetwork device may be a social network server or the like, which is notlimited by the present disclosure. The social network server in thisembodiment of the present disclosure includes but is not limited to abackground server for a social functioning website such as WeChat,microblog, or Facebook® (a social service networking site).

If the first guide information needs to be sent to the second networkdevice, the first guide information may be guide information includingessential help-seeding content, for example, the first guide informationmay be information including help-seeding content or may be informationincluding road guide content; or the first guide information may includeonly the alarm information or include only the information about thealarm terminal, but does not include essential help-seeding content,that is, the essential help-seeding content needs to be generated by thesecond network device. In this case, the second network device needs toanalyze the alarm information. A specific analyzing process is similarto the foregoing analyzing process of the first network device, and fora specific example refer to Table 1, described above.

For example, after receiving the first guide information sent by thefirst network device, a network device in a radio communications systemsends the second guide information to a determined target terminalaccording to the location information of the alarm terminal. Forexample, the network device in the radio communications system sends,according to a base station in which the alarm terminal is located, thesecond guide information to terminals within coverage of the basestation; or the network device in the radio communications system sends,according to a location of the alarm terminal, the second guideinformation to terminals whose distances from the alarm terminal areless than a preset distance.

The second guide information may include, for example, the locationinformation of the alarm terminal and/or navigation information. Thenavigation information is navigation information between the targetterminal and the alarm terminal. When target terminals are different,corresponding navigation information is also different.

Further, the second guide information sent by the second network devicemay not include the location information of the alarm terminal, and thetarget terminals that receive the second guide information may feed anacknowledgement message back to the second network device, where theacknowledgement message may be used to indicate whether a user of acorresponding target terminal can offer rescue. If the acknowledgementmessage fed back by a target terminal is a message for confirmingrescue, the second network device may further send the locationinformation of the alarm terminal and/or navigation information to thetarget terminal, to help the rescuer find the help seeker as soon aspossible; and if the acknowledgement message fed back by a targetterminal is a message for confirming no rescue, the second networkdevice does not need to send other messages to the target terminal,which can reduce, to the greatest extent, an amount of information thatthe second network device needs to send, and less information that needsto be sent indicates a higher information sending speed, thereby savingtime.

For example, a target terminal that receives the second guideinformation may feed back to the network device in the radiocommunications system whether a user using the target terminal canperform rescue. For example, if obtaining a message for confirmingrescue from a target terminal, the network device in the radiocommunications system may send the location information of the alarmterminal and/or navigation information to the target terminal, andinstruct a user using the target terminal to find the help seekerquickly.

The social network server may collect/acquire geographical locationinformation of each online terminal, that is, the server can grasp thegeographical location information of each terminal in real time. Afterreceiving the alarm information, the social network server may look up,according to the location information of the alarm terminal, onlineterminals that are within a distance from the alarm terminal, and sendthe second guide information to these terminals.

For example, the social network server may first send the second guideinformation to target terminals that are within a 100-meter radius ofthe alarm terminal; if no terminal replies to confirm rescue within apreset period of time, the social network server may extend the range toa 200-meter radius of the alarm terminal, and send the second guideinformation to target terminals that are within the range, and so on;the social network server sends the second guide information as much aspossible until a response of confirming rescue is received.

Further, when each terminal registers with the social network server, acorresponding user may note a rescue forte of the user, for example, aswimming lifeguard, a surgeon, wrestling, and artificial respiration. Inaddition, the corresponding user may set in real time whether a “rescue”function is enabled for social terminal software corresponding to thesocial network server; and when the user disables the rescue function,the server does not push the second guide information to the user.

All kinds of terminal software mentioned in the present disclosure maybe, for example, all kinds of communications software such as WeChat, QQ(a kind of instant messaging software), and Skype® (a kind ofcommunications software).

Preferably, after receiving the first guide information, the socialnetwork server may perform screening, according to the locationinformation of the alarm terminal, to obtain a terminal that meets acondition and for which the rescue function is enabled; and further, thesocial network server obtains, by matching according to the second guideinformation, a user that meets a rescue condition, that is, obtaining,by matching, a user that can offer rescue; that is, the social networkserver selects a corresponding target terminal according to the locationinformation of the alarm terminal and the second guide information, andthen pushes the second guide information to the selected targetterminal.

For example, the second guide information generated by the socialnetwork server is that “at xxx site, a person falls into water and isrescued; and a nearby rescuer who can perform artificial respiration,please offer help as soon as possible”. The social network server firstselects, from users near the alarm terminal, an online user that enablesthe rescue function; and then obtains a rescue forte by matchingaccording to the second guide information, where the rescue forte inthis case includes “swimming lifeguard” and “artificial respiration”.The social network server pushes the second guide information to the twotypes of users; and for other users, although distances from the alarmterminal are relatively short, and the rescue function is enabled,because the users do not have the corresponding rescue forte, the socialnetwork server may not push the second guide information to the users.And the social network server may record a historical rescue record of aregistered user, and mark and rank the registered user; and whenselecting a nearby user, the server may prefer a user who has a greaterrescue score or a higher rank.

Optionally, when a rescuer confirms offering help, the rescuer may clickfor confirming after receiving the second guide information, that is,replying to confirm rescue to the social network server; the socialnetwork server may further send the location information of the alarmterminal or navigation information to a terminal of the rescuer, or maysend the location information and the navigation information at the sametime; and the social network server may also send information about therescuer to the alarm terminal. Alternatively, the social network servermay send to the alarm terminal information about all rescuers who areobtained by screening, a user of the alarm terminal may select at leastone rescuer from the rescuers and feed the at least one rescuer back tothe social network server. After the rescuer confirms rescue or the userof the alarm terminal selects a rescuer, the social network server maysend the location information of the alarm terminal or navigationinformation to the terminal of the rescuer, or may send the locationinformation and the navigation information at the same time. Thenavigation information is a path along which the rescuer can find thehelp seeker, and a starting point and an ending point are a location ofthe rescuer and a location of the help seeker respectively. It can beseen that, for different target terminals, navigation information sentby the social network server may be different.

Preferably, in this embodiment of the present disclosure, that the firstnetwork device generates first guide information according to the alarminformation, and sends the first guide information to a target terminalincludes that the first network device requests, according to theinformation about the alarm terminal that is carried in the alarminformation, location information of the alarm terminal from a secondnetwork device; the first network device receives the locationinformation of the alarm terminal that is fed back by the second networkdevice; the first network device generates the first guide informationaccording to the alarm information and the location information of thealarm terminal, where the location information of the alarm terminal isobtained by the second network device by means of AGPS, or the locationinformation of the alarm terminal is obtained by the second networkdevice in a TOA manner; and the first network device sends the firstguide information to the second network device, and sends, using thesecond network device, to the target terminal second guide informationthat includes the first guide information.

If the alarm terminal does not send the location information of thealarm terminal to the first network device, the first network deviceneeds to obtain the location information of the alarm terminal. Theinformation about the alarm terminal may be, for example, an identifierof the alarm terminal; and the first network device may request toobtain the location information of the alarm terminal from the secondnetwork device according to the identifier of the alarm terminal.

For example, if the alarm terminal does not include the positioningmodule, obviously the alarm terminal cannot report the locationinformation of the alarm terminal. The first network device may requestto obtain the location information of the alarm terminal from thenetwork device in the radio communications system.

Preferably, in this embodiment of the present disclosure, if the secondnetwork device needs to determine the location information of the alarmterminal, the second network device can only be a network device in theradio communications system, and cannot be a social network server.

After the first network device receives the alarm information but doesnot receive the location information of the alarm terminal, the firstnetwork device sends, to the network device in the radio communicationssystem, a request for acquiring the location information of the alarmterminal, and the first network device may send the information aboutthe alarm terminal to the network device in the radio communicationssystem. The network device in the radio communications system calculatesthe location information of the alarm terminal according to theinformation about the alarm terminal, and sends the location informationto a server of a 110 alarm center.

A possible manner of the first network device requesting to obtain thelocation information of the alarm terminal from the network device inthe radio communications system is that a Visitor Location Register(VLR) in the radio communications system is used to calculate thelocation information of the help-seeking user, and the VLR identifies,according to a name of a base station to which the alarm terminalbelongs, a physical location of the base station, and determines thatthe physical location of the base station is the location of the alarmterminal.

A possible manner of the first network device requesting to obtain thelocation information of the alarm terminal from the network device inthe radio communications system is confirming a location of the mobileterminal using TOA. TOA and time difference of arrival (TDOA) arepositioning methods based on radio-wave transmission time, and are alsopositioning methods of three base stations; positioning of both TOA andTDOA requires three base stations whose locations are known to cooperateat the same time; the three base stations calculate distances from thealarm terminal, and finally calculate an actual physical location of thealarm terminal. This manner is more accurate than the foregoing manner,and is completed by a base station in the radio communications system.

In a more specific scenario, a elder citizen carries a terminal or awearable device; when the senior citizen is in danger (for example,tumbling or a sudden disease attack), the elder user may trigger theterminal or the wearable device to generate a help-seeking signal andsend the help-seeking signal to an alarm center (the first networkdevice). Alarm content may be selected from, for example: 1. a dangeroccurs, and help is needed; 2. a fault of another person causes danger,and help is needed; and the like. A danger type may be further included;and with improvement of the terminal or the wearable device, a physicalsign parameter of the elder user may be further sent. The alarm centerserver generates a rescue guide according to the foregoing obtainedhelp-seeking signal, and sends the rescue guide to a person near theelder user who seeks help. The foregoing method may be used in thisscenario; in addition, a manner in which the user of the terminal or thewearable device sends the alarm information may further be that thealarm center (the first network device) receives alarm information sentby an alarm terminal; and after confirming the alarm information, thealarm center generates first help-seeking information (which may becalled first guide information) according to the alarm information, andsends the first help-seeking information to a target terminal, so thatthe target terminal can respond to the alarm information according tothe first help-seeking information, where the target terminal is aterminal selected from terminals that are within same base-stationsignal coverage in which the alarm terminal is located, or the targetterminal is a terminal selected from terminals whose distances from thealarm terminal are less than a threshold. Further, the target terminalmay be a specified terminal, for example, a terminal user with a setpre-stored number, or an associated user (a child, relative, doctor, orthe like).

In this scenario, according to alarm or help-seeking information, apurposeful and timely response is more easily obtained, and misgivingsof people about a help-seeking request are easily dispelled.

Referring to FIG. 2, an embodiment of the present disclosure providesanother information sending method, and a main procedure of the methodis as follows.

Step 201: A first network device receives alarm information sent by analarm terminal.

Step 202: After confirming the alarm information, the first networkdevice generates first guide information according to the alarminformation, sends the first guide information to a second networkdevice, and sends, using the second network device, to a target terminalsecond guide information that relates to the first guide information,where the target terminal is a terminal that is determined, by thesecond network device according to location information of the alarmterminal and the second guide information, among terminals that arewithin same base-station signal coverage in which the alarm terminal islocated, or, a terminal that is determined, by the second network deviceaccording to location information of the alarm terminal and the secondguide information, among terminals whose distances from the alarmterminal are less than a threshold.

The manner in which the first network device confirms the alarminformation or puts the alarm information on a record has been describedin the procedure in FIG. 1, which is not described herein again.

Preferably, in this embodiment of the present disclosure, the secondguide information is information generated by the first network deviceaccording to the first guide information, or the second guideinformation is the first guide information.

Preferably, in this embodiment of the present disclosure, that thesecond network device sends to the target terminal second guideinformation that relates to the first guide information may include thatthe second network device determines the second guide informationaccording to the first guide information; and the second network devicedetermines the target terminal according to the second guide informationand the location information of the alarm terminal, and sends the secondguide information to the target terminal.

That is, the second network device may determine the target terminal,according to the second guide information and the location informationof the alarm terminal, among terminals that are within same base-stationsignal coverage in which the alarm terminal is located, or, the secondnetwork device may determine the target terminal, according to thesecond guide information and the location information of the alarmterminal, among terminals whose distances from the alarm terminal areless than the threshold. For example, if a meaning of the alarminformation is that “a person falls into water and is rescued, but is ina coma”, the second network device may expect to find a rescuer who isnear the help seeker and can perform artificial respiration. Therefore,a meaning of the second guide information generated by the secondnetwork device may be that “a person nearby falls into water and isrescued; and if you are familiar with artificial respiration, pleaseoffer help at once”. When the second network device performs selecting,a user of the selected target terminal should be familiar withartificial respiration, that is, selecting according to the second guideinformation.

Preferably, in this embodiment of the present disclosure, that thesecond network device determines the target terminal according to thesecond guide information includes that the second network devicedetermines, according to at least the second guide information and forteinformation of users corresponding to terminals that are within samebase-station signal coverage in which the alarm terminal is located, thetarget terminal among the terminals that are within the samebase-station signal coverage in which the alarm terminal is located; or,the second network device determines, according to at least the secondguide information and forte information of users corresponding toterminals whose distances from the alarm terminal are less than thethreshold, the target terminal among the terminals whose distances fromthe alarm terminal are less than the threshold.

Referring to FIG. 3, an embodiment of the present disclosure provides aninformation sending method, and a main procedure of the method is asfollows.

Step 301: A terminal sends alarm information to a first network device.

In this embodiment of the present disclosure, the terminal may be thealarm terminal described above. For example, a user triggers thehelp-seeking module of the alarm terminal, and the alarm terminal sendsthe alarm information to the first network device.

Step 302: The terminal receives second guide information fed back by thefirst network device, where the second guide information is generated bythe first network device according to the alarm information.

Step 303: The terminal establishes a communications link with a targetterminal according to the second guide information.

Preferably, the communications link may refer to a D2D communicationslink. The second guide information may include time-frequency resourceinformation that is required by the terminal during establishment of theD2D communications link.

Preferably, that the terminal establishes a communications link with atarget terminal according to the second guide information includes thatthe terminal establishes a D2D communications link with the targetterminal according to the second guide information.

Step 304: The terminal sends first guide information to the targetterminal over the communications link with the target terminal, wherethe first guide information is generated by the terminal according tothe alarm information, and the target terminal is a terminal selectedfrom terminals that are within same base-station signal coverage inwhich the alarm terminal is located, or the target terminal is aterminal selected from terminals whose distances from the alarm terminalare less than a threshold.

Preferably, the terminal may generate the first guide informationaccording to the alarm information. For example, the first guideinformation may be the alarm information; or the first guide informationmay be information that has a guide function and is generated by theterminal according to the alarm information, for example, may be guideinformation described in the foregoing embodiments.

Preferably, that the terminal sends first guide information to thetarget terminal over the communications link with the target terminalmay include that the terminal sends the first guide information to thetarget terminal over the D2D communications link with the targetterminal.

That is, the alarm terminal may directly communicate with the targetterminal, without transferring by another network device, therebyimproving communication efficiency. The terminals communicate using aD2D standard. D2D is a technology that allows, under control of asystem, terminals to communicate directly by reusing a cell resource,and D2D can improve spectrum efficiency of a cellular communicationssystem, reduce transmit power of a terminal, and resolve to some extenta problem that spectrum resources of a radio communications system areinsufficient. Resources occupied by each D2D communications link areequal to those occupied by one cellular communications link. During D2Dcommunication, frequency resources and transmit power that are requiredduring communication are obtained under control of a cellular basestation. Cell users may communicate using a base-station service, or maycommunicate directly over a D2D link. A cellular communication basestation communicates with a terminal using a control signal, andterminals may perform service communication directly.

Referring to FIG. 4, based on a same inventive concept, an embodiment ofthe present disclosure provides a network device, where the networkdevice may include a receiving module 401 and an operating module 402.The network device may be the first network device described above.

The receiving module 401 may be configured to receive alarm informationsent by an alarm terminal.

The operating module 402 may be configured to, after confirming thealarm information, generate first guide information according to thealarm information, and send the first guide information to a targetterminal, so that the target terminal can respond to the alarminformation according to the first guide information, where the targetterminal is a terminal selected from terminals that are within samebase-station signal coverage in which the alarm terminal is located, orthe target terminal is a terminal selected from terminals whosedistances from the alarm terminal are less than a threshold.

Preferably, in this embodiment of the present disclosure, the firstguide information is information including help-seeking content, or thefirst guide information is information including road guide content.

Preferably, in this embodiment of the present disclosure, the receivingmodule 401 may further be configured to receive location information ofthe alarm terminal that is sent by the alarm terminal, where thelocation information of the alarm terminal is obtained by the alarmterminal by means of AGPS/GPS; and the operating module 402 may furtherbe configured to generate the first guide information according to thealarm information, and send the first guide information to the targetterminal, where the target terminal is a terminal that is determined,according to the location information of the alarm terminal and thefirst guide information, among terminals that are within samebase-station signal coverage in which the alarm terminal is located, or,a terminal that is determined, according to the location information ofthe alarm terminal and the first guide information, among terminalswhose distances from the alarm terminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, that theoperating module 402 may be configured to confirm the alarm informationis determining whether the alarm information is valid alarm information,and determining, according to information about the alarm terminal thatis carried in the alarm information, whether the alarm terminal is anauthorized terminal; and when the alarm information is valid alarminformation, and the alarm terminal is an authorized terminal,confirming that detection of the alarm information is passed.

Preferably, in this embodiment of the present disclosure, that theoperating module 402 may be configured to generate first guideinformation according to the alarm information is parsing the alarminformation and determining a meaning of the alarm information; andgenerating the corresponding first guide information according to themeaning of the alarm information.

Preferably, in this embodiment of the present disclosure, that theoperating module 402 may be configured to send the first guideinformation to a target terminal is sending the first guide informationto a second network device, and sending, using the second networkdevice, to the target terminal second guide information that includesthe first guide information, where the target terminal is a terminalthat is determined, by the second network device according to locationinformation of the alarm terminal and the second guide information,among terminals that are within same base-station signal coverage inwhich the alarm terminal is located, or, a terminal that is determined,by the second network device according to location information of thealarm terminal and the second guide information, among terminals whosedistances from the alarm terminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, the operatingmodule 402 may be configured to request, according to the informationabout the alarm terminal that is carried in the alarm information,location information of the alarm terminal from a second network device;receive the location information of the alarm terminal that is fed backby the second network device; generate the first guide informationaccording to the alarm information and the location information of thealarm terminal, where the location information of the alarm terminal isobtained by the second network device by means of AGPS, or the locationinformation of the alarm terminal is obtained by the second networkdevice in a TOA manner; and send the first guide information to thesecond network device, and send, using the second network device, to thetarget terminal second guide information that includes the first guideinformation.

Preferably, in this embodiment of the present disclosure, the targetterminal is a terminal that is determined, by the network deviceaccording to the first guide information, among terminals whosedistances from the alarm terminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, that theoperating module 402 may be configured to determine the target terminalaccording to the first guide information is determining, according to atleast the first guide information and forte information of userscorresponding to terminals that are within same base-station signalcoverage in which the alarm terminal is located, the target terminalamong the terminals that are within the same base-station signalcoverage in which the alarm terminal is located; or, determining,according to at least the first guide information and forte informationof users corresponding to terminals whose distances from the alarmterminal are less than the threshold, the target terminal among theterminals whose distances from the alarm terminal are less than thethreshold.

Preferably, in this embodiment of the present disclosure, the firstguide information further includes navigation information between thetarget terminal and the alarm terminal.

Referring to FIG. 5, based on a same inventive concept, an embodiment ofthe present disclosure provides a network device, where the networkdevice may include a receiving module 501 and an operating module 502.Preferably, the network device may be the first network device describedabove.

The receiving module 501 may be configured to receive alarm informationsent by an alarm terminal.

The operating module 502 may be configured to, after confirming thealarm information, generate first guide information according to thealarm information, send the first guide information to a second networkdevice, and send, using the second network device, to a target terminalsecond guide information that relates to the first guide information,where the target terminal is a terminal that is determined, by thesecond network device according to location information of the alarmterminal and the second guide information, among terminals that arewithin same base-station signal coverage in which the alarm terminal islocated, or, a terminal that is determined, by the second network deviceaccording to location information of the alarm terminal and the secondguide information, among terminals whose distances from the alarmterminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, the secondguide information is information generated by the first network deviceaccording to the first guide information, or the second guideinformation is the first guide information.

Referring to FIG. 6, based on a same inventive concept, an embodiment ofthe present disclosure provides a terminal, where the terminal mayinclude a sending module 601, a receiving module 602, and anestablishing module 603. The terminal may be the alarm terminaldescribed above.

The sending module 601 may be configured to send alarm information to afirst network device; and send first guide information to a targetterminal over a communications link with the target terminal, where thefirst guide information is generated by the terminal according to thealarm information, and the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

The receiving module 602 may be configured to receive second guideinformation sent by the first network device, where the second guideinformation is generated by the first network device according to thealarm information.

The establishing module 603 may be configured to establish thecommunications link with the target terminal according to the secondguide information.

Preferably, the establishing module 603 may be configured to establish aD2D communications link with the target terminal according to the secondguide information; and the sending module 601 may be configured to sendthe first guide information to the target terminal over the D2Dcommunications link with the target terminal.

Preferably, the second guide information includes time-frequencyresource information.

Referring to FIG. 7, based on a same inventive concept, an embodiment ofthe present disclosure provides a network device, where the networkdevice may be the first network device described above. The networkdevice includes a bus 740, a processor 710 connected to the bus 740, amemory 720, a transmitter 730, and a receiver 750. The memory 720 isconfigured to store an instruction. The receiver 750 is configured toreceive alarm information sent by an alarm terminal. The processor 710is configured to execute the instruction, and after confirming the alarminformation, generate the first guide information according to the alarminformation. The transmitter 730 is configured to send the first guideinformation to a target terminal, so that the target terminal canrespond to the alarm information according to the first guideinformation, where the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

Preferably, in this embodiment of the present disclosure, the firstguide information is information including help-seeking content, or thefirst guide information is information including road guide content.

Preferably, in this embodiment of the present disclosure, the receiver750 is further configured to receive location information of the alarmterminal that is sent by the alarm terminal, where the locationinformation of the alarm terminal is obtained by the alarm terminal bymeans of AGPS/GPS; the processor 710 is further configured to executethe instruction and generate the first guide information according tothe alarm information; and the transmitter 730 is further configured tosend the first guide information to the target terminal, where thetarget terminal is a terminal that is determined, according to thelocation information of the alarm terminal and the first guideinformation, among terminals that are within same base-station signalcoverage in which the alarm terminal is located, or, a terminal that isdetermined, according to the location information of the alarm terminaland the first guide information, among terminals whose distances fromthe alarm terminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, that theprocessor 710 is configured to execute the instruction and confirm thealarm information is executing the instruction, determining whether thealarm information is valid alarm information, determining according toinformation about the alarm terminal that is carried in the alarminformation, whether the alarm terminal is an authorized terminal; andwhen the alarm information is valid alarm information, and the alarmterminal is an authorized terminal, confirming that detection of thealarm information is passed.

Preferably, in this embodiment of the present disclosure, the processor710 is configured to execute the instruction, parse the alarminformation, and determine a meaning of the alarm information; andgenerate the corresponding first guide information according to themeaning of the alarm information.

Preferably, in this embodiment of the present disclosure, thetransmitter 730 is configured to send the first guide information to asecond network device, and send, using the second network device, to thetarget terminal second guide information that includes the first guideinformation, where the target terminal is a terminal that is determined,by the second network device according to location information of thealarm terminal and the second guide information, among terminals thatare within same base-station signal coverage in which the alarm terminalis located, or, a terminal that is determined, by the second networkdevice according to location information of the alarm terminal and thesecond guide information, among terminals whose distances from the alarmterminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, thetransmitter 730 is configured to request, according to the informationabout the alarm terminal that is carried in the alarm information,location information of the alarm terminal from a second network device;the receiver 750 is configured to receive the location information ofthe alarm terminal that is fed back by the second network device; theprocessor 710 is configured to execute the instruction and generate thefirst guide information according to the alarm information and thelocation information of the alarm terminal, where the locationinformation of the alarm terminal is obtained by the second networkdevice by means of AGPS, or the location information of the alarmterminal is obtained by the second network device in a TOA manner; andthe transmitter 730 is configured to send the first guide information tothe second network device, and send, using the second network device, tothe target terminal second guide information that includes the firstguide information.

Preferably, in this embodiment of the present disclosure, that theprocessor 710 is configured to execute the instruction, generate firstguide information according to the alarm information and send the firstguide information to a target terminal is generating the first guideinformation according to the alarm information; and determining thetarget terminal according to the first guide information; and thetransmitter 730 is configured to send the first guide information to thetarget terminal, where the target terminal is a terminal that isdetermined, by the first network device according to the first guideinformation, among terminals that are within same base-station signalcoverage in which the alarm terminal is located, or, a terminal that isdetermined, by the first network device according to the first guideinformation, among terminals whose distances from the alarm terminal areless than the threshold.

Preferably, in this embodiment of the present disclosure, that theprocessor 710 is configured to execute the instruction and determine thetarget terminal according to the first guide information is executingthe instruction, and determining, according to at least the first guideinformation and forte information of users corresponding to terminalsthat are within same base-station signal coverage in which the alarmterminal is located, the target terminal among the terminals that arewithin the same base-station signal coverage in which the alarm terminalis located; or, executing the instruction, and determining, according toat least the first guide information and forte information of userscorresponding to terminals whose distances from the alarm terminal areless than the threshold, the target terminal among the terminals whosedistances from the alarm terminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, the firstguide information further includes navigation information between thetarget terminal and the alarm terminal.

Referring to FIG. 8, based on a same inventive concept, an embodiment ofthe present disclosure provides a network device. The network device maybe the first network device described above. The network device includesa bus 840, a processor 810 connected to the bus 840, a memory 820, atransmitter 830, and a receiver 850. The memory 820 is configured tostore an instruction. The receiver 850 is configured to receive alarminformation sent by an alarm terminal. The processor 810 is configuredto execute the instruction, and after confirming the alarm information,generate the first guide information according to the alarm information.The transmitter 830 is configured to send the first guide information toa second network device, and send, using the second network device, to atarget terminal second guide information that relates to the first guideinformation, where the target terminal is a terminal that is determined,by the second network device according to location information of thealarm terminal and the second guide information, among terminals thatare within same base-station signal coverage in which the alarm terminalis located, or, a terminal that is determined, by the second networkdevice according to location information of the alarm terminal and thesecond guide information, among terminals whose distances from the alarmterminal are less than the threshold.

Preferably, in this embodiment of the present disclosure, the secondguide information is information generated by the network deviceaccording to the first guide information, or the second guideinformation is the first guide information.

Referring to FIG. 9, based on a same inventive concept, an embodiment ofthe present disclosure provides a terminal, where the terminal may bethe alarm terminal described above. The terminal includes a bus 940, aprocessor 910 connected to the bus 940, a memory 920, a transmitter 930,and a receiver 950. The memory 920 is configured to store aninstruction. The transmitter 930 is configured to send alarm informationto a first network device; and send first guide information to a targetterminal over a communications link with the target terminal, where thefirst guide information is generated by the terminal according to thealarm information, and the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold. The receiver 950 is configured to receive second guideinformation sent by the first network device, where the second guideinformation is generated by the first network device according to thealarm information. The processor 910 is configured to execute theinstruction and establish the communications link with the targetterminal according to the second guide information.

Preferably, in this embodiment of the present disclosure, the processor910 is configured to execute the instruction and establish a D2Dcommunications link with the target terminal according to the secondguide information; and the transmitter 930 is configured to send thefirst guide information to the target terminal over the D2Dcommunications link with the target terminal.

Preferably, in this embodiment of the present disclosure, the secondguide information includes time-frequency resource information.

The information sending method in the embodiments of the presentdisclosure may include receiving, by a first network device, alarminformation sent by an alarm terminal; and after confirming the alarminformation, generating, by the first network device, first guideinformation according to the alarm information, and sending the firstguide information to a target terminal, so that the target terminal canrespond to the alarm information according to the first guideinformation, where the target terminal is a terminal selected fromterminals that are within same base-station signal coverage in which thealarm terminal is located, or the target terminal is a terminal selectedfrom terminals whose distances from the alarm terminal are less than athreshold.

In the embodiments of the present disclosure, after receiving the alarminformation, the first network device may generate the first guideinformation and send the first guide information to the target terminal.In this way, the target terminal may respond to the alarm information,and help rescue a user of the alarm terminal. Because the targetterminal is a terminal selected from terminals that are within samebase-station signal coverage in which the alarm terminal is located, orthe target terminal is a terminal selected from terminals whosedistances from the alarm terminal are less than a threshold, which meansthat a distance between the target terminal and the alarm terminal isrelatively short, so that the target terminal can arrive at the site intime to rescue the user of the alarm terminal, thereby effectivelyimproving rescue efficiency. The first network device automaticallysends the first guide information to the target terminal, where theremay be one or more target terminals, and the alarm terminal does notneed to send the first guide information one by one; therefore,efficiency of information transmission is relatively high, and it isensured to the greatest extent that the user of the alarm terminal canbe rescued in time.

It may be clearly understood by a person skilled in the art that, forthe purpose of convenient and brief description, division of theforegoing function units is taken as an example for illustration. Inactual application, the foregoing functions can be allocated todifferent function units and implemented according to a requirement,that is, an inner structure of an apparatus is divided into differentfunction units to implement all or part of the functions describedabove. For a detailed working process of the foregoing system,apparatus, and unit, refer to a corresponding process in the foregoingmethod embodiments, and details are not described herein again.

In the several embodiments provided in the present application, itshould be understood that the disclosed system, apparatus, and methodmay be implemented in other manners. For example, the describedapparatus embodiment is merely exemplary. For example, the unit divisionis merely logical function division and may be other division in actualimplementation. For example, a plurality of units or components may becombined or integrated into another system, or some features may beignored or not performed. In addition, the displayed or discussed mutualcouplings or direct couplings or communication connections may beimplemented through some interfaces. The indirect couplings orcommunication connections between the apparatuses or units may beimplemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and parts displayed as units may or may not be physical units,may be located in one position, or may be distributed on a plurality ofnetwork units. Some or all of the units may be selected according toactual needs to achieve the objectives of the solutions of theembodiments.

In addition, functional units in the embodiments of the presentapplication may be integrated into one processing unit, or each of theunits may exist alone physically, or two or more units are integratedinto one unit. The integrated unit may be implemented in a form ofhardware, or may be implemented in a form of a software functional unit.

When the integrated unit is implemented in the form of a softwarefunctional unit and sold or used as an independent product, theintegrated unit may be stored in a computer-readable storage medium.Based on such an understanding, the technical solutions of the presentapplication essentially, or the part contributing to the prior art, orall or some of the technical solutions may be implemented in the form ofa software product. The software product is stored in a storage mediumand includes several instructions for instructing a computer device(which may be a personal computer, a server, or a network device) or aprocessor to perform all or some of the steps of the methods describedin the embodiments of the present application. The foregoing storagemedium includes any medium that can store program code, such as auniversal serial bus (USB) flash drive, a removable hard disk, aread-only memory (ROM), a random access memory (RAM), a magnetic disk,or an optical disc.

In the foregoing descriptions, the foregoing embodiments are merelyintended for describing the technical solutions of this application indetail; however, the descriptions of the foregoing embodiments aremerely intended to help understand the method and idea of the presentdisclosure, and shall not be construed as a limitation on the presentdisclosure. Any variation or replacement readily figured out by a personskilled in the art within the technical scope disclosed in the presentdisclosure shall fall within the protection scope of the presentdisclosure.

What is claimed is:
 1. An information sending method, comprising:sending, by an alarm terminal, alarm information to a network device,the alarm information comprising emergency information and locationinformation of the alarm terminal; receiving, by the alarm terminal,information of a target terminal from the network device, the targetterminal being selected by the network device establishing, by the alarmterminal, a communications link with the target terminal; and sending,by the alarm terminal, a guide information to the target terminal overthe communications link with the target terminal, the guide informationbeing generated by the alarm terminal according to the emergencyinformation.
 2. The method of claim 1, wherein establishing, by thealarm terminal, the communications link with the target terminalcomprises establishing, by the alarm terminal, a device-to-device (D2D)communications link with the target terminal according to theinformation of a target terminal, and wherein sending, by the alarmterminal, the guide information to the target terminal over thecommunications link with the target terminal comprises sending, by thealarm terminal, the guide information to the target terminal over theD2D communications link with the target terminal.
 3. The method of claim1, wherein the target terminal is one of a plurality of terminalslocated within a same base-station signal coverage area in which thealarm terminal is located.
 4. The method of claim 1, wherein the targetterminal is a terminal selected from a plurality of terminals, theplurality of terminals being located within a threshold distance fromthe alarm terminal.
 5. An alarm terminal, comprising: a transmitterconfigured to: send alarm information to a network device, the alarminformation comprising emergency information and location information ofthe alarm terminal; and send a guide information to a target terminalover a communications link with the target terminal, the guideinformation being generated according to the emergency information; areceiver configured to receive information of the target terminal fromthe network device, the target terminal being selected by the networkdevice; and a processor coupled to the transmitter and the receiver andconfigured to a communications link with the target terminal andgenerate the guide information according to the emergency information.6. The alarm terminal of claim 5, wherein the processor is furtherconfigured to establish a device-to-device (D2D) communications linkwith the target terminal according to the information of the targetterminal, and the transmitter being further configured to send the guideinformation to the target terminal over the D2D communications link withthe target terminal.
 7. The alarm terminal of claim 5, wherein thetarget terminal is one of a plurality of terminals located within a samebase-station signal coverage area in which the alarm terminal islocated.
 8. The alarm terminal of claim 5, wherein the target terminalis a terminal selected from a plurality of terminals, the plurality ofterminals being located within a threshold distance from the alarmterminal.